Finding the Fourth Proportional to 139,665.16, 209,498.81 and 39,825.27

Step by Step Solution

1. Step 1: Write the proportion equation
   139,665.16 : 209,498.81 = 39,825.27 : x
2. Step 2: Convert to fraction form
   139,665.16/209,498.81 = 39,825.27/x
3. Step 3: Cross multiply
   139,665.16x = 209,498.81 × 39,825.27
4. Step 4: Simplify right side
   139,665.16x = 8,343,346,473.80
5. Step 5: Solve for x
   x = 8,343,346,473.80/139,665.16
6. Step 6: Final answer
   x = 59,738.21